Reliable and fast data transfer. With this cable, you can connect your power bank to router. Thus, when power cut, you can use your power bank to supply your router! 
Internet blackout solve baby, continuous power supply Artifact 
Use mobile power,charging treasure or notebook usb interface 
Drive after a power outage or optical router cat online 
Via computer USB jack to power other devices. Such as: USB lights, USB fan, Cartoon watches, radiator, 5V mini speakers, USB HUB, etc. 
Interface: USB 
transfer DC5.5 * 2.1MM(2.5MM) 
Input voltage: DC 5V 
Output voltage: DC 9V and 12V Max 
Color: Black 
Material: ABS 
Output current: For 800mA or less application is recommended 
Package includes: 
1 X Conversion Line 
Only the above package content, other products are not included. 
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.